Improvement in locks



i UNITED STATESv PATENTr Erica..

. y GASPAR jJAer, or NEW YORK, N. Y.

IMPROVEMENT IN LOCKS.

Specification forming part of Letters Patent No. 35,376, dated May 27, 1.862.

To all whom it may concern:

Be it known that I, CASPARJAGY, of New York city, county, and State, have invented certain new and useful Improvements in Locks, and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of` reference marked thereon.

In the annexed drawings, making part of this specification, A represents the case of the lock, which is constructed in any of the most substantial known ways.

B represents the main bolt.

C represents a metallic plate, constructed as seen in Figure 2, and'flrmly secured to the bolt B near its center and crosswise of it.

4Two additional bolts are intended to be irml y secured to the ends of the plate C, `which will run parallel with the main bolt.

D represents a frame which slides backward and forward crosswise of the lock-case, and which is pressed toward the knob by means of a spring," d.

I represents an arm upon a collar through which the knobshank passes. This collar is provided with a square hole into which the square shank ts. The arm I is provided with a friction-rollerwhich presses against the frame D, a projecting end of the arm pressing against the bolt B for moving them lboth when necessary.

E represents a lever, one end of which connects with the frame D, while the other ts between two pins, i i, upon the slide-plate F. Near the end of the lever is a slide through which the lever passes, which fits in the slot o.

g (seen in Fig. 3) represents the opening in the slide through which the lever passes, said slide being actuated by the lever, of course, when the lever is moved.

a: represents the key-hole, and when the Ikey is inserted the slide in the slot o presses against the lower end, or against the edge ofv the key near its lower end,for the purpose of making said key operate properly upon the Wards. l V

The plate F slideswhen the lever is moved, and a portion of it enters the opening or slot a in the back of the key. The front edge of the key is made irregular in the manner shown in the drawings, in orderrto correspond with the irregularity of the ends of the certain position before the lug can enter the y opening. -After it has entered and proceeded a short space, the recess is reached and the wards are moved by the bars H, so that the lug is caught in the recess. It cannot be moved from this opening until all of the wards are so moved that the opening in each will correspond.

The opening in the frame D in which the lug a fits has two recesses, one of which the lug fits when the bolt is out and the other when the bolt is in. The'frame is first moved upward by the roller on arm I before the bolt can be moved. When the key is inserted in its hole and the spindle is turned, moving the frame D upward, the end of the lever E,with its slide and plate F, press upon the back of the key and adjust the wards by pressing the kew down against them to receive the lug m or to let it out. At the same time the frame D moves upward to allow the lug c to move. Thus after the key is inserted the bolt may be moved by simply turning the knob without touching the key.

One great advantage derived from securing the plate C to the main bolt in the manner set forth is that the weight is better balanced and muchevenness and ease of motion are given to the parts of the lock. In other locks the plate is attached to the main bolt at the end or outside of the loclecasing, thereby causing an unevenness of weight and grinding on the edge. Y

' l. Connecting the plate C, to which side bolts may be attached, to the main bolt between the spindle and the wards, as and for the purpose specified.

2. Adjusting the wards by means of the spindle through the'instrumentaliby of the In witness that I claim the foregoing have lever E, the slide F, and the key, substanhereunto seb my name in the presence of two tially as set; forth. Witnesses.

3. The combination of the key with the GASPAR JAGY. Wards and plate F, when arranged and con- Wvtnesses: structed in the manner and for the purpose JAS. V. DM'ENPORT, set forth. J AMES CHRYSTAL. 

